When running test_bitcoin under Valgrind I found the following issue:
```
$ valgrind src/test/test_bitcoin
...
==10465== Use of uninitialised value of size 8
==10465== at 0x6D09B61: ??? (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==10465== by 0x6D0B1BB: std::ostreambuf_iterator<char, std::char_traits<char> > std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::_M_insert_int<unsigned long>(std::ostreambuf_iterator<char, std::char_traits<char> >, std::ios_base&, char, unsigned long) const (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==10465== by 0x6D0B36C: std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::do_put(std::ostreambuf_iterator<char, std::char_traits<char> >, std::ios_base&, char, unsigned long) const (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==10465== by 0x6D17699: std::ostream& std::ostream::_M_insert<unsigned long>(unsigned long) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21)
==10465== by 0x4CAAD7: operator<< (ostream:171)
==10465== by 0x4CAAD7: formatValue<ServiceFlags> (tinyformat.h:345)
==10465== by 0x4CAAD7: void tinyformat::detail::FormatArg::formatImpl<ServiceFlags>(std::ostream&, char const*, char const*, int, void const*) (tinyformat.h:523)
==10465== by 0x1924D4: format (tinyformat.h:510)
==10465== by 0x1924D4: tinyformat::detail::formatImpl(std::ostream&, char const*, tinyformat::detail::FormatArg const*, int) (tinyformat.h:803)
==10465== by 0x553A55: vformat (tinyformat.h:947)
==10465== by 0x553A55: format<ServiceFlags> (tinyformat.h:957)
==10465== by 0x553A55: std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > tinyformat::format<ServiceFlags>(char const*, ServiceFlags const&) (tinyformat.h:966)
==10465== by 0x54C952: getnetworkinfo(JSONRPCRequest const&) (net.cpp:462)
==10465== by 0x28EDB5: CallRPC(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) (rpc_tests.cpp:31)
==10465== by 0x293947: rpc_tests::rpc_togglenetwork::test_method() (rpc_tests.cpp:88)
==10465== by 0x2950E5: rpc_tests::rpc_togglenetwork_invoker() (rpc_tests.cpp:84)
==10465== by 0x182496: invoke<void (*)()> (callback.hpp:56)
==10465== by 0x182496: boost::unit_test::ut_detail::callback0_impl_t<boost::unit_test::ut_detail::unused, void (*)()>::invoke() (callback.hpp:89)
...
```
The read of the uninitialized variable nLocalServices is triggered by g_connman->GetLocalServices()
in getnetworkinfo(const JSONRPCRequest& request) (net.cpp:462):
```c++
UniValue getnetworkinfo(const JSONRPCRequest& request)
{
...
if(g_connman)
obj.push_back(Pair("localservices", strprintf("%016x", g_connman->GetLocalServices())));
...
}
```
The reason for the uninitialized nLocalServices is that CConnman::Start(...) is not called
by the tests, and hence the initialization normally performed by CConnman::Start(...) is
not done.
This commit adds a method Init(const Options& connOptions) which is called by both the
constructor and CConnman::Start(...). This method initializes nLocalServices and the other
relevant values from the supplied Options object.
f228b8e remove some unused functions (Marko Bencun)
Pull request description:
Identified with `cppcheck --enable=unusedFunction .`.
- GetSendBufferSize()'s last use removed in
991955e
- SetPort()'s last use removed in
7e195e8
- GetfLargeWorkInvalidChainFound() was introduced in
e3ba0ef and never used
Tree-SHA512: ea8e5498bec981e42e1342c171c37723c2f5e575c7d6c1a524d9c6cd9b332bdd0d84fddf9e14ca011bb49fb82bd037386382c9afc546b3c2231ae548358bd4f4
a2420ae Avoid unnecessary work in SetNetworkActive (João Barbosa)
Pull request description:
This PR adds an early return to avoid unnecessary notifications when the status doesn't change.
Tree-SHA512: 85d05ca6fa36cb581f94bc154d08bd72cd53f6a857173c6fb2f184058f9c0208c4cf5e5d196825a78339902d8f256688eb6793f99abc7be9c7cfac85136180d9
Identified with `cppcheck --enable=unusedFunction .`.
- GetSendBufferSize()'s last use removed in
991955ee81
- SetPort()'s last use removed in
7e195e8459
- GetfLargeWorkInvalidChainFound() was introduced in
e3ba0ef956 and never used
c1be285 chainparams: make supported service bits option explicit (Cory Fields)
d5c7c1c net: use an internal address for fixed seeds (Cory Fields)
6cdc488 net: switch to dummy internal ip for dns seed source (Cory Fields)
6d0bd5b net: do not allow resolving to an internal address (Cory Fields)
7f31762 net: add an internal subnet for representing unresolved hostnames (Cory Fields)
Tree-SHA512: 9bf1042bef546ac3ef0e0d3a9a5555eb21628ff2674a0cf8c6367194b22bfdab477adf452c0e7c56f44e0fb37debc5e14bdb623452e076fb9c492c7702601d7a
Part of a series of changes to clean up the instantiation of connman
by decoupling the command line arguments.
We also now abort with an error when explicit binds are set with
-listen=0.
We currently do two resolves for dns seeds: one for the results, and one to
serve in addrman as the source for those addresses.
There's no requirement that the source hostname resolves to the stored
identifier, only that the mapping is unique. So rather than incurring the
second lookup, combine a private subnet with a hash of the hostname.
The resulting v6 ip is guaranteed not to be publicy routable, and has only a
negligible chance of colliding with a user's internal network (which would be
of no consequence anyway).
This adds the listening address on which incoming connections were received to the
CNode and CNodeStats structures.
The address is reported in `getpeerinfo`.
This can be useful for distinguishing connections received on different listening ports
(e.g. when using a different listening port for Tor hidden service connections)
or different networks.
b6fbfc2 net: only enforce the services required to connect (Cory Fields)
Tree-SHA512: 88943bff63213a734f3c96c45760cadaeb9ba18287c8a20c279851ebaf058a334c969028fb2180f155508e3eea4b838147382e4f2b655e7a9aa098eadc81d53e
Previously if we didn't have any local addresses, GetLocalAddress would return
0.0.0.0 and then we'd swap in a peer's notion of our address in AdvertiseLocal,
but then nServices would never get set.
0f3471f net: make CNode's id private (Cory Fields)
9ff0a51 scripted-diff: net: Use accessor rather than node's id directly (Cory Fields)
e50c33e devtools: add script to verify scriptable changes (Cory Fields)
Tree-SHA512: a0ff50f4e1d38a2b63109b4996546c91b3e02e00d92c0bf04f48792948f78b1f6d9227a15d25c823fd4723a0277fc6a32c2c1287c7abbb7e50fd82ffb0f8d994
d6732d8 [tests] update disconnect_ban.py test case to work with listbanned (John Newbery)
77c54b2 [net] listbanned RPC and QT should show correct banned subnets (John Newbery)
Tree-SHA512: edd0e43377d456260d2697213c2829f8483630f3a668b6707d52605faefa610d951d10e6f22a95eff483cbd14faa8ac9b69fa7d3c0b5735c5f3df23fd71282e0
This changes the logging categories to boolean flags instead of strings.
This simplifies the acceptance testing by avoiding accessing a scoped
static thread local pointer to a thread local set of strings. It
eliminates the only use of boost::thread_specific_ptr outside of
lockorder debugging.
This change allows log entries to be directed to multiple categories
and makes it easy to change the logging flags at runtime (e.g. via
an RPC, though that isn't done by this commit.)
It also eliminates the fDebug global.
Configuration of unknown logging categories now produces a warning.
a4d1c9f compat: use `unsigned int` instead of `u_int` (Wladimir J. van der Laan)
25da1ee build: cleanup: define MSG_DONTWAIT/MSG_NO_SIGNAL locally (Wladimir J. van der Laan)
c459d50 build: Probe MSG_DONTWAIT in the same way as MSG_NOSIGNAL (Wladimir J. van der Laan)
Tree-SHA512: 60d79d69439bb181465e4244aa5ddc28bbd84f69c0ca0c753956b3798c9022394e29d791bc085fe7ffb1268c64c789a57e24797daad63525bb776088188ff9ae
We previously would block waiting for a CSemaphoreGrant in
ThreadOpenAddedConnections, when we did not need to. This would
block as the posts in CConnman shutdown were both to the wrong
semaphore and in the wrong location.
Define MSG_DONTWAIT and MSG_NO_SIGNAL in the implementation files that
use them (`net.cpp` and `netbase.cpp`), instead of compat.h which is
included all over the place.
This avoids putting them in the global namespace, as defining them as 0
is a hack that works for our specific usage, but it is not a general
solution.
Also makes sure they are defined only once so the `!defined(MSG_x)` guard can go.
66f861a Add a test for P2P inactivity timeouts (Matt Corallo)
b436f92 qa: Expose on-connection to mininode listeners (Matt Corallo)
8aaba7a qa: mininode learns when a socket connects, not its first action (Matt Corallo)
2cbd119 Disconnect peers which we do not receive VERACKs from within 60 sec (Matt Corallo)
